... beam C purlin, window, sandwich panel 4 ISO9001 1500sqm Double Sloped Galvanized Color Coated Steel Shed I IntroductionCompared with ... 9-180m,type:Single slope, double slope, muti slope; Single span, double-span, Multi-span, single floor, double floors! 3)Height: 3-10m ... thickness around 50mm~150mm, YX40-320-960 11)Accessories:Semi-transparent skylight belts, Ventilators, down pipe, outer gutter, etc ...